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Finding the Fourth Proportional to 19,281.59, 26,608.80 and 11,323.95

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Solution

The fourth proportional to 19,281.59, 26,608.80 and 11,323.95 is: 15,627.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,281.59 : 26,608.80 = 11,323.95 : x
  2. Step 2: Convert to fraction form
    19,281.59/26,608.80 = 11,323.95/x
  3. Step 3: Cross multiply
    19,281.59x = 26,608.80 × 11,323.95
  4. Step 4: Simplify right side
    19,281.59x = 301,316,813.12
  5. Step 5: Solve for x
    x = 301,316,813.12/19,281.59
  6. Step 6: Final answer
    x = 15,627.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.